I need a map of big pine lakes and kearsarge pass so at rei they have the Harrison maps(seki map) but i only need an 8×8 section of it at most and this map is 24×36.Every time you pull this map out you have to unfold it several times and that gets old not too mention the wear and tear.
The other issue is that my 2 areas of interest are both on the edges at opposite ends of this map.A lot of stuff north and south of the areas of interest are cut off.Is there an online service where you can choose your destination and then print it out?

Another option is to take the map to an office supply store like Staples. Have them scan it in 11×17 pieces to your thumb drive in JPG format at high resolution. Archive those files on your computer, then on your computer take a copy of a file and manipulate it with your graphics program of choice. Print out a section as needed for your trip.

I've done this with some of the big NatGeo maps. I use other resources (TOPO and CalTopo.com) for most mapping but sometimes I need data that's only (easily) available on the NatGeo map.

I just take some scissors and cut them up, then fold it up and put it in my pocket…
simple, low tech is sometimes the best…

I have all the Harrison maps of the sierra and have cut them down into more manageable sections. If you really study them chances are you will find like I did that they cut up into quite logical smaller sections that will cover most trips that you are likely to do